Συντάχθηκε 31-10-2013 15:56
από Balasi Panagiota
Email συντάκτη:
Ενημερώθηκε:
-
Ιδιότητα: -.
ΠΟΛΥΤΕΧΝΕΙΟ ΚΡΗΤΗΣ
Σχολή Ηλεκτρονικών Μηχανικών και Μηχανικών Υπολογιστών
Πρόγραμμα Προπτυχιακών Σπουδών
ΠΑΡΟΥΣΙΑΣΗ ΔΙΠΛΩΜΑΤΙΚΗΣ ΕΡΓΑΣΙΑΣ
ΑΝΑΓΝΩΣΤΟΠΟΥΛΟΥ ΕΛΕΥΘΕΡΙΟΥ
με θέμα
CHRONOS: A Reasoning Engine for Qualitative
Temporal Information in Owl
Τρίτη 5 Νοεμβρίου 2013, 9πμ
Αίθουσα 141.Α14, Κτίριο Επιστημών, Πολυτεχνειούπολη
Εξεταστική Επιτροπή
Καθηγητής Πετράκης Ευριπίδης (επιβλέπων)
Καθηγητής Χριστοδουλάκης Σταύρος
Αναπληρωτής Καθηγητής Λαγουδάκης Μιχαήλ
Abstract
We propose CHRONOS, a system for reasoning and querying over temporal information in OWL ontologies. Representing both qualitative temporal (i.e., information whose temporal extends are unknown, such as “before” or “after” for temporal relations) in addition to quantitative information (i.e., where temporal definition is defined precisely e.g., using dates) is a distinctive feature of the proposed approach. Qualitative representations are very common in natural language expressions, such as in free text or speech, and can be proven to be valuable in the Semantic Web. CHRONOS reasoner applies over temporal assertions, infers implied relations, detects inconsistencies and retains soundness, completeness and tractability over the supported relations, using path consistency. The experimental results have demonstrated that CHRONOS runs up to several times faster compared to other implementations, which also support reasoning over qualitative data, and scales-up well for large data sets.
